The most fun you can have in audio is DIYing your own speakers

You don't have to make the best speakers on earth, or most expensive, and you don't have to become an expert in the tech, but in all my years in audio, I have to say DIY is the most fun and educational. For me, speaker building was a lot more fun than electronics (amps, pre's etc.) 

Lots of great sources for complete kits as well as paper-only designs. Speaker building is also a great thing to do with your kids. I highly recommend it.

Best,


Erik